An evaluation of the apprehension, relocation, and surprise tests for anterior shoulder instability
An evaluation of the apprehension, relocation, and surprise tests for anterior shoulder instability
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DOI:
10.1177/0095399703258690
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发表时间:
2004-03-01
影响因子:
4.8
通讯作者:
Kirkley, A
中科院分区:
文献类型:
--
作者:
Lo, IKY;Nonweiler, B;Kirkley, A
Background: Although there are many studies describing tests for shoulder instability, there are few assessing the validity of these tests in diagnosing anterior shoulder instability.Purpose: To assess the validity of the apprehension, relocation, and surprise tests as predictors of anterior shoulder instability.Study Design: Retrospective review of prospectively collected data.Methods: Forty-six patients with a clear diagnosis of one of the following shoulder disorders were evaluated by four independent, blinded examiners: traumatic anterior instability (18), rotator cuff tendinosis (17), posterior instability (2), glenohumeral osteoarthritis (4), or multidirectional instability (5). Interobserver reliability was also determined.Results: In subjects who had a feeling of apprehension on all three tests, the mean positive and negative predictive values were 93.6% and 71.9%, respectively. The surprise test was the single most accurate test (sensitivity = 63.89%; specificity = 98.91%). An improvement in the feeling of apprehension or pain with the relocation test added little to the value of the tests. Interobserver reliability was determined to be 0.83.Conclusions and Clinical Relevance: The results of this study suggest that a positive instability exam on all three tests is highly specific and predictive of traumatic anterior glenohumeral instability.